DEFROSTING

Use the scraper provided for removing the frost if the freezer operation must be continued. Pay attention not to impact or damage the inner wall.

1.When defrosting, move all the contents of containers in the freezer to another low temperature freezer.

2.Pressing the DEF key for more than 5 seconds to stop the refrigerating operation.

While the refrigerating operation is stopped, the current chamber temperature and dF is displayed on the control panel alternately.

3.After a several hours, check the visually that all defrost was removed completely.

4.If a defroster is finished, a drain cap at bottom inside the freezer is removed. Draw drain hose, and drain the water with water inside the freezer in the tray. Wipe the water left in the freezer, and do the cap.

5.Pressing the DEF key for more than 5 seconds, the refrigerating operation can be started.

6.Once the chamber temperature has dropped to the desired temperature, place the original contents back in the freezer chamber.

Note: After the defrosting, the refrigerating is never resumed automatically.

Make sure to press the defrost key (DEF) for more than 5 seconds to start operation again.

MAINTENANCE

WARNING

Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in

order to prevent electric shock or injury.

Ensure you do not inhale or consume medication or aerosols from around the unit at the time of

maintenance. These may be harmful to your health.

CAUTION

Always put on the dry gloves to protect the hands at the time of maintenance. No gloves may cause

cut of the finger by the edge or corner.

Cleaning

Clean the unit once a month. Regular cleaning keeps the unit looking new.

Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all accessories. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent can damage the plastic components. For the dilution, refer to the instruction of the

detergent.) After the cleaning with the diluted detergent, always wipe it off with a wet cloth. Then wipe off the cabinet or accessories with a dry cloth.

Never pour water onto or into the unit. Doing so can damage the electrical insulation and may cause electric shock or short circuit.

The compressor and other mechanical parts are completely sealed. This unit requires absolutely no lubrication.

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Sanyo MDF-U730M instruction manual Defrosting, Maintenance

MDF-U730M specifications

Sanyo, a renowned brand in the field of scientific equipment, has developed a range of high-performance medical and laboratory refrigerators and freezers, including the MDF-U730M, MDF-136, MDF-U730, MDF-436, and MDF-236 models. These units are designed to meet the strict requirements of healthcare facilities, research laboratories, and biological storage applications.

The Sanyo MDF-U730M is a top-of-the-line ultra-low temperature freezer offering outstanding temperature stability and energy efficiency. It features a temperature range of -50°C to -86°C, making it ideal for storing sensitive biological samples. This model is equipped with advanced microprocessor control, which ensures accurate temperature regulation. The unit also includes a built-in alarm system for monitoring and alerts in case of temperature fluctuations, ensuring sample safety.

The MDF-136 is a compact yet spacious model designed for everyday use in labs where space may be limited. It offers a temperature range of -10°C to -20°C and is equipped with an efficient refrigeration system, providing consistent and reliable cooling. This unit has a robust design, featuring positive air circulation which enhances temperature uniformity throughout the interior.

The MDF-U730 offers versatile storage with an adjustable shelving system to accommodate various sample sizes. It is ideal for long-term storage, with a temperature range extending from -50°C to -86°C. This U730 model is also highly praised for its energy-efficient properties, helping institutions control operational costs while maintaining optimal sample integrity.

The MDF-436 stands out due to its dual refrigeration system, ensuring fast temperature recovery after door openings. With a temperature range of 2°C to 8°C, it is perfect for storing vaccines and sensitive pharmaceuticals. This model incorporates a user-friendly interface as well as a detailed digital display for easy temperature monitoring.

Lastly, the MDF-236 is known for its compact design, combining reliability with exceptional performance. It operates efficiently within the same temperature range as the MDF-436, making it suitable for similar applications. Its compact size makes it an excellent choice for laboratories with space constraints while still providing ample storage for essential materials.

Overall, Sanyo's lineup of MDF series freezers and refrigerators is characterized by their robust construction, advanced technology, and a focus on energy efficiency and temperature stability, ensuring the safe storage of vital biological materials in laboratory and medical environments.